Request: dual mount notification

[tdc-nl]

Ok so i got maybe a weird request but ill throw it out anyway hoping its possible (couldn't see in pinned message anything about this).

So what am i looking for. I play a lot with a guild member and we travel a lot on the dual mount.
Tough i am sometimes so blind (not literally but...) tgat i dont see correct if the extra player is on mount or left rhe mount (jumping off) to gather node in the world .

Is there a way to make a kind of notification message on screen as soon as a player mounts on your dual mount or leaves it?

I see a lit is possible with messages on screen... (example crutch alerts and for trials).
So i assume its a simple thing, but to be fair i am no programmer so no clue if it's possible .

Hoping someone is able to help me have a bit more pleasure playing with dual mount

If any more info is needed please ask,ill try to answer as best as i can.

Tldr:
Notitify big message on screen when other player enters+leaves dual mount.